Automatic gas-regulator.



PATENTED DEC. 5, 1905.

D. H. KENT. AUTOMATIC GAS REGULATOR.

v liiiiiii APPLICATION FILED APR.3, 1905.

S1 lmawl oz UNITED sTATEs inrranr @FFIC DON HENRY lx l'lNT, OF URBANA, OHIO, ASSIGNOH, BY DIRECT!" AND MESNE ASSIGNMENTIS, TO THE AMERICAN AU'l'OBL-X'llt. liliiii C(Q'I BIPANY, OF URBANA, OHIO, A CORPORATION .OF @1110.

, AUTOMATIC GAS-REGULATORr.

Specification. of Letters Patent.

Patented Dec. 5, I905. I

Application filed April 3, 1905. Serial Ne 253,607.

To all whom it may concern.-

Be it known that 1, Don HnuRYKnN'r, acitizen of the United States, residing at U rbana, in'the count ofUhampaign and State oiOhio, have invented certain new and useful 1m prove- ,men tsin Automatic Gas-Regulators, of which the following 18 a speclfication.

My invention relates to improvements in automatic gas-regulators for gas-burners, and particularly for incandesccntbu rners, in which the intensity of the light and the life of the incandescent mantle depend upon the accurate regulation'of the gas-supply.

Figure 1 is a side elevation of a gas burner'.

to which my invention has been applied. Fig. 2 is a detail view ofthat part of the burner where the valve is located, and Fig. 3 is a detail viewofthe valve and valve connections.

Like parts are represented by similar letters of reference throughout the several views. 4

In the accompanyingdrawings I have shown my device attached to and operating in connection with a simple form of incandescent burner; but it is obvious that it may be employed with the various forms of burners now in use. In saiddrawings, It represents the burner, which in this case is of the usual Bunsen type and provided with an incandescent mantle It, supported in the usual way to receive the heat which renders the same incandescent. r1 is a gas-conduit leading thereto. Located within the conduitis a valve t,- preferahly conical in shape and adapted to open or close an opening 1/, which leads to the burner proper -in this case throughtl e mixing-chamber It", where the proper mixture of air and gas is formed. This valve is supported on the end ol a valve-lever b, which is mounted on a projecting arm If, attached to a suitable part of the su;alerting-frame of" the burner propm. 'llw arm is preferably perforated at its outer end to receive the end of a thermostatic rod 1-. lt is also provided with aspring l) of suitable construction to close the valve.- This rod is supported at its upper end on a suitable support c' adjacent to the burner proper or in position to receive the heat therefrom. It is screw-threaded at its lower end and provided with a regulatingscrew I i The support '0' is preferably otiset, as shown, so as to be farther removed from the action of the heat of the burner, and it is.

preferably formed of a material having less expansion by changes of temperature than the thermostatic rod 0.

In operation the gas is supplied to the burner through the usual key, which may be opened to the fullest extent and the burner ignited.

The valve is adjusted by turning the nut c until with a normal pressure the valved opening'b' will permit a suflicient amount of gas to pass through to supply the light or heat desired at the burner. In the event that the gaspressure should be increased for any cause a greater amount of gas will be supplied, which will force the heat products in contact with the thermostatic rod 1; and cause the same to expand and permit the valve to close through thcoperation of a spring (1. In the event that the pressure is reduced or for any reason the supply of gas to produce the normal temperature is out off the rod will retract and open the valve.

It will be seen that the construction is ex tremely simple and has proven suiiicient for automatically regulating the supply of gas to retain the burner in normal position under the various fluctuations which may occur in the gas-pressure, thus producing not, only a better light, but also efi'cctinga saving oi the gas and causing the burners to operate with greater eiiiciency. It is especially cllicient and valuable in the saving of the mantles of incandescent burners, the life of which depends upon the proper regulation of the gas-supply, an abnormally high u-essure of gas causing the mantles to break and an abnormally low pres- -sure causing-them to becomccarbonizcd, which destroys their cilicicncy for light aswell as their life.

Having thus described my invention, I

.claim---- I. The combination with a gas-burner, an incandescent mantle surrounding said burner,

aconduit leading to said burner, a valve for' said conduit, a thermostatic rod arranged in 2 v p a 806,474

' proximity to said mantle supported stationarily at one end, andat the other end at- "tached to said valve, said rod being adapted by its elongation and contraction to control 5 the position of said valveand the flowof gas to ,said. burner, substantially as and for the purpose specified.

'2. The combination with a burner and its mantle, a conduit leading to Saidburner, a

I valve in said conduit, a'pivoted lever connected to said valve, a thermostatic rod supported adjacent to said mantle and connected toasaid lever, a spring attached tosaid lever adapted to close said valve, and an adjustable co'nnec 15 tion between's'aid rod and lever, substantially as and for thepurpose specified.

3. The combination, witha burner,- of a conduitleading thereto, a valve in saidconduit,

a lever connected to said valve at one end, a

thermostatic rod connected to said lever at the other end by an adjustablebonnectiou, and an offset-support for said rod, substantially as specified.

1 A. The'combination with a burner,"a;cou-

duit leading' thereto, a valve in said conduit, Y

a mantle surrounding-said burner, a thermostatic rodarranged adjacent to said burner and connected to said valve, and a support -for said rod, said supportbeing farther removed from the influence of the heat of said burner than said thermostatic rod, substan- 

